/*
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef GRAPHIC_LITE_COMMON_MACROS_H
#define GRAPHIC_LITE_COMMON_MACROS_H

#ifndef _WIN32
#define UI_WEAK_SYMBOL __attribute__((weak))
#else
#define UI_WEAK_SYMBOL
#endif

#define ALIGN_UP(sz, align) (((sz) + ((align) - 1)) & (-(align)))
#define ALIGN_DOWN(sz, align) ((sz) & (-(align)))
#define ADDR_ALIGN(ptr, sz, align)                                  \
    do {                                                             \
        uint32_t _sz = ALIGN_DOWN(sz, align);                       \
        (ptr) = decltype(ptr)((uintptr_t)(void*)(ptr) + ((sz)-_sz)); \
        (sz) = _sz;                                                  \
    } while (0)
#define STRUCT_ALIGN(sz) alignas(sz)

#ifdef ALIGNMENT_BYTES
#if (ALIGNMENT_BYTES != 0) && ((ALIGNMENT_BYTES & (ALIGNMENT_BYTES - 1)) != 0)
#error ALIGNMENT_BYTES should be power of 2.
#endif
#define UI_ALIGN_UP(size) ALIGN_UP((size), ALIGNMENT_BYTES)
#define UI_ALIGN_DOWN(size) ALIGN_DOWN((size), ALIGNMENT_BYTES)
#define UI_ADDR_ALIGN(ptr, sz) ADDR_ALIGN(ptr, sz, ALIGNMENT_BYTES)
#define UI_STRUCT_ALIGN STRUCT_ALIGN(ALIGNMENT_BYTES)
#else
#define UI_ALIGN_UP(size)  ALIGN_UP((size), 4U)
#define UI_ALIGN_DOWN(size) ALIGN_DOWN((size), 4U)
#define UI_ADDR_ALIGN(ptr, sz)
#define UI_STRUCT_ALIGN
#endif

#endif